A woman in her 60s has been arrested as part of an investigation into a protest at the home of Taoiseach Simon Harris in May.
A group of around a dozen masked individuals held banners with anti-immigrant slogans outside the house as his wife was preparing their two young children for bed on 2 May.
Images were subsequently circulated on social media.
A woman in her 50s was arrested last week in connection with the same protest.
Gardaí said the second woman was arrested this afternoon.
In a statement, they said it has arrested "a further individual for alleged offences contrary to the Non-Fatal Offences against the Person Act, as part of ongoing investigations into the alleged harassment of an elected representative on 2nd May 2024".
The woman is currently detained at a Garda Station in Co Wicklow under the provisions of Section 4 of the Criminal Justice Act 1984.
